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    <title>百度一下</title>
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    <form>
        <div class="a1">
            <span>新闻</span>
            <span>hao123 </span>
            <span>地图</span> 
            <span>视频</span> 
            <span>贴吧</span> 
            <span>学术</span> 
            <span>登录</span> 
            <span>设置</span>
            <button class="a2">更多产品</button>
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        <div class="a3"><span><img src="baidu_resultlogo@2.jpg" /></span></div><br />

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            <span><input class="a5"></input></span>
            <button class="a6">百度一下</button>
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        <div class="a7">
            <span><img src="zbios_09b6296.jpg" /></span><br />
            <span>下 载 百 度 A P P</span><br>
            <span>有事搜一搜&nbsp;&nbsp;没事看一看</span>

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